mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 23:50:19 +00:00
1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <LibGUI/Frame.h>
|
|
#include <LibGUI/Scrollbar.h>
|
|
|
|
namespace GUI {
|
|
|
|
class ScrollableWidget : public Frame {
|
|
C_OBJECT(ScrollableWidget)
|
|
public:
|
|
virtual ~ScrollableWidget() override;
|
|
|
|
Gfx::IntSize content_size() const { return m_content_size; }
|
|
int content_width() const { return m_content_size.width(); }
|
|
int content_height() const { return m_content_size.height(); }
|
|
|
|
Gfx::IntRect visible_content_rect() const;
|
|
|
|
Gfx::IntRect widget_inner_rect() const;
|
|
|
|
Gfx::IntRect viewport_rect_in_content_coordinates() const
|
|
{
|
|
auto viewport_rect = visible_content_rect();
|
|
viewport_rect.set_size(widget_inner_rect().size());
|
|
return viewport_rect;
|
|
}
|
|
|
|
void scroll_into_view(const Gfx::IntRect&, Orientation);
|
|
void scroll_into_view(const Gfx::IntRect&, bool scroll_horizontally, bool scroll_vertically);
|
|
|
|
void set_scrollbars_enabled(bool);
|
|
bool is_scrollbars_enabled() const { return m_scrollbars_enabled; }
|
|
|
|
Gfx::IntSize available_size() const;
|
|
Gfx::IntSize excess_size() const;
|
|
|
|
Scrollbar& vertical_scrollbar() { return *m_vertical_scrollbar; }
|
|
const Scrollbar& vertical_scrollbar() const { return *m_vertical_scrollbar; }
|
|
Scrollbar& horizontal_scrollbar() { return *m_horizontal_scrollbar; }
|
|
const Scrollbar& horizontal_scrollbar() const { return *m_horizontal_scrollbar; }
|
|
Widget& corner_widget() { return *m_corner_widget; }
|
|
const Widget& corner_widget() const { return *m_corner_widget; }
|
|
|
|
void scroll_to_top();
|
|
void scroll_to_bottom();
|
|
|
|
int width_occupied_by_vertical_scrollbar() const;
|
|
int height_occupied_by_horizontal_scrollbar() const;
|
|
|
|
void set_should_hide_unnecessary_scrollbars(bool b) { m_should_hide_unnecessary_scrollbars = b; }
|
|
bool should_hide_unnecessary_scrollbars() const { return m_should_hide_unnecessary_scrollbars; }
|
|
|
|
Gfx::IntPoint to_content_position(const Gfx::IntPoint& widget_position) const;
|
|
Gfx::IntPoint to_widget_position(const Gfx::IntPoint& content_position) const;
|
|
|
|
Gfx::IntRect to_content_rect(const Gfx::IntRect& widget_rect) const { return { to_content_position(widget_rect.location()), widget_rect.size() }; }
|
|
Gfx::IntRect to_widget_rect(const Gfx::IntRect& content_rect) const { return { to_widget_position(content_rect.location()), content_rect.size() }; }
|
|
|
|
protected:
|
|
ScrollableWidget();
|
|
virtual void custom_layout() override;
|
|
virtual void resize_event(ResizeEvent&) override;
|
|
virtual void mousewheel_event(MouseEvent&) override;
|
|
virtual void did_scroll() { }
|
|
void set_content_size(const Gfx::IntSize&);
|
|
void set_size_occupied_by_fixed_elements(const Gfx::IntSize&);
|
|
|
|
private:
|
|
class ScrollableWidgetScrollbar final : public Scrollbar {
|
|
C_OBJECT(ScrollableWidgetScrollbar);
|
|
|
|
protected:
|
|
explicit ScrollableWidgetScrollbar(ScrollableWidget& owner, Gfx::Orientation orientation)
|
|
: Scrollbar(orientation)
|
|
, m_owner(owner)
|
|
{
|
|
}
|
|
|
|
virtual void mousewheel_event(MouseEvent& event) override
|
|
{
|
|
m_owner.handle_wheel_event(event, *this);
|
|
}
|
|
|
|
private:
|
|
ScrollableWidget& m_owner;
|
|
};
|
|
friend class ScrollableWidgetScrollbar;
|
|
|
|
void update_scrollbar_ranges();
|
|
void handle_wheel_event(MouseEvent&, Widget&);
|
|
|
|
RefPtr<ScrollableWidgetScrollbar> m_vertical_scrollbar;
|
|
RefPtr<ScrollableWidgetScrollbar> m_horizontal_scrollbar;
|
|
RefPtr<Widget> m_corner_widget;
|
|
Gfx::IntSize m_content_size;
|
|
Gfx::IntSize m_size_occupied_by_fixed_elements;
|
|
bool m_scrollbars_enabled { true };
|
|
bool m_should_hide_unnecessary_scrollbars { false };
|
|
};
|
|
|
|
}
|